(verb)
to have a slight shine and a warm color, often due to good health, describing the appearance of a person's face;
e.g. She started to glow after only a month of following her new fitness regimen.
(verb)
to experience a strong emotion as a feeling similar to heat and to show this in one's behavior or expression, especially an emotion such as pride/pleasure, anger, or embarrassment;
e.g. He started to glow as they praised his work.
(noun)
the state or instance of giving off light due to possessing heat, or the light thus given off;
e.g. The room was so dark that all I could see was the glow from the light bulb.
(noun)
an appearance of brightness and warm color on someone's face, often viewed as a sign of good health;
e.g. His face took on a glow as he recovered from his illness and grew stronger.
(noun)
a feeling of warmth caused by experiencing an emotion such as pleasure;
e.g. She felt a glow of satisfaction as she viewed the finished product.